Spencer Pratt apparently feels Jason Wahler's recent denial that he made a sex tape with Lauren Conrad doesn't hold much weight.

"We all know that it existed, that he tried to sell it and is now covering up to make himself look better," Pratt told Us Weekly on Wednesday.

Pratt appeared on both American Idol host Ryan Seacrest's KIIS-FM radio show on Monday and Tuesday's The Tyra Banks Show, in which he insisted that a sex tape featuring Wahler and Conrad did exist at one point.

Wahler insisted the sex tape doesn't exist in a subsequent statement.

"I do not have a sex tape of Lauren Conrad and one does not exist," said Wahler in the statement.  "Spencer Pratt is lying again to get attention.  Lauren is my friend, and it is insulting to her to suggest this."

However Pratt thinks he's found holes in Wahler's denial.

"Jason's statement couldn't be more transparent," he told Us.  "Notice how he uses present tense, 'I DO not have a sex tape... one DOES not exist.'"

While Pratt and his girlfriend Heidi Montag claimed to have never actually seen the tape, both stated they know for certain it existed. 

In addition, Pratt has claimed the reason Wahler never succeeded in selling it is because Conrad's parents called his parents and put the kibosh on it.

Conrad has continuously insisted that a sex tape with her and Wahler does not exist, and has also previously alleged her much publicized ongoing tiff with Montag began when she and Pratt began spreading rumors about the alleged sex tape.